Stepped Junction of the Two Rectangular Waveguides with the Impedance Slotted Iris
In the previous chapter we considered the problem of the resonant slot iris in the infinite rectangular waveguide in the case where all surfaces of waveguide elements were supposed to be perfectly conductive ones.
Thin-film coatings of materials with variable electrophysical properties can be used for expansion of functional capabilities of waveguide devices and realization of non-mechanical control of their characteristics by means of external field-effect or other actions. In particular, the coatings can be applied directly on iris surfaces.
Apparently, that experimental development of waveguide devices containing elements with thin-film coatings is a very laborious process. In this connection evolution of the mathematical models of devices and elements of such kind is an important problem for practical applications. Here modeling is usually based on solutions of boundary–value problems in which the approximation of a distributed surface impedance is used [6.1, 6.2]. On the one...
KeywordsSurface Impedance Rectangular Waveguide Magnetic Current Waveguide Coupling Waveguide Section
- 6.1.Leontovich, M.A.: On the approximate boundary conditions for the electromagnetic field on surfaces of good conductive bodies. Investigations of Radiowave Propagation. Printing House of the Academy of Sciences of the USSR, Moscow-Leningrad (1948) (in Russian)Google Scholar
- 6.2.Weinstein, L.A.: The Theory of Diffraction and the Factorization Method. Golem Press, Boulder (1969)Google Scholar
- 6.3.Penkin, Yu.M.: Admittance of slots with coordinate boundaries in a half-infinite rectangular waveguide with impedance endface. Telecommunications and Radio Engineering. 52, 22–26 (1998)Google Scholar